2.9 Modifying Commands

In this section, commands for modifying the content of a buffer are
described. These commands affect the region determined by a motion command
which is given to the commands as their argument.

We classify motion commands into point commands and
line commands. The point commands are as follows:

h, l, 0, ^, $, w, W, b, B, e, E, (, ), /, ?, `, f, F, t, T, %, ;, ,

The line commands are as follows:

j, k, +, -, H, M, L, {, }, G, '

If a point command is given as an argument to a modifying command, the
region determined by the point command will be affected by the modifying
command. On the other hand, if a line command is given as an argument to a
modifying command, the region determined by the line command will be
enlarged so that it will become the smallest region properly containing the
region and consisting of whole lines (we call this process expanding
the region), and then the enlarged region will be affected by the modifying
command.